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Rounding (Grades 3-5)
Free Rounding Worksheets (Grades 3-5) — with Answer Keys
Print a rounding worksheet for grades 3-5 below — rounding whole numbers to the nearest ten and hundred, rounding decimals, and estimating sums — with a complete answer key. No signup needed.
Rounding Practice — Grades 3-5
Round to the nearest 10 or 100
1.Round 568 to the nearest ten.
2.Round 655 to the nearest hundred.
3.Round 643 to the nearest ten.
4.Round 526 to the nearest ten.
Rounding & estimation
5.Estimate 331 + 307 by rounding each number to the nearest hundred first.
6.Round 55,146 to the nearest ten.
7.Round 27,625 to the nearest hundred.
8.Estimate 394 + 445 by rounding each number to the nearest hundred first.
Rounding decimals
9.Round 27.673 to the nearest whole number.
10.Round 42.522 to the nearest tenth.
11.Round 39.102 to the nearest tenth.
12.Round 25.923 to the nearest whole number.
Estimate sums by rounding
13.Estimate 62 + 62 by rounding each number to the nearest ten first, then adding. What is the estimate?
14.Estimate 61 + 68 by rounding each number to the nearest ten first, then adding. What is the estimate?
15.Estimate 64 + 57 by rounding each number to the nearest ten first, then adding. What is the estimate?
Answer Key
1.570
2.700
3.640
4.530
5.600
6.55150
7.27600
8.800
9.28
10.42.5
11.39.1
12.26
13.120
14.130
15.120
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Frequently asked questions
Are these rounding worksheets free?
Yes — view, print, and share every sheet for free, with no account and no signup.
Do they include an answer key?
Every worksheet has a full answer key at the bottom of the page.
What grades are these rounding worksheets for?
They are designed for Grades 3-5.
Can I get a different worksheet?
Yes — click “Generate a new sheet” and a fresh set of problems (with a matching answer key) is created instantly.
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